<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
{{$arr.name}}--{{$arr.age}}
<br/>
{$obj->name} -- {$obj->age} -- {$obj->fn()}  -- {$obj::PI}
<br />
{$obj->bb|default="没有bb"}
<br/>
{$Request.get.id}
<br/>
{$Request.host}
<br/>
{$Think.config.app.default_timezone}
{$Think.const.PHP_VERSION}
<br/>
{$password|md5|sha1|raw}
<br/>
{$time|date='Y-m/d'}
<br/>
函数：
{:strtoupper(substr($arr.name,1,2))}

<br/>
{$number+$number}
{$number?'ok':'no'}
</body>
</html>